Joseph hufty lehman



(No Model.) Y

J. H. LEHMAN. 2

' PUSH BUTTON.

'No. 400,232. Patented Mar. 26, 1889.

ml! m" '1 .2. L 7; Q

Q {Ni-J I 3/ 1 2 g UNITED STATES PATENT @FFICE.

JOSEPH I'IUFTY LEI'IMAN, OF PHILADELPHIA, PENNSYLVANIA.

PUSH=BUTTON.

SPECIFICATION forming part of Letters Patent No. 400,232, dated March 26, 1889.

' Application filed August 8, 1888! Serial No. 282,230- (No model.)

To all whom it may concern:

Be it known that I, J OSEPH HUFTY LEH- MAN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Push-Buttons, of which the following is a full, clear, and exact specification.

My invention relates to push-buttons, and has for its object to provide a button with a signaling apparatus which shall indicate to the operator the condition of the circuit in which the push-button is placed; and to this end my invention consists in a push-button having a signal connected therewith and constructed and arranged substantially as hereinafter set forth.

Referring to the accompanying drawings, Figure l is a plan view of a push-button embodying my invention with the top portion of the case removed. the same with the top portion of the case shown in dotted lines. Fig. 3 is a diagrammatic view showing one way of using the button in this instance in connection with an electric gas-lighter.

Upon a suitable base is mounted a magnet the coil A of which is shown included in the circuit of the-push-button, and the core B in this instance is shown with an extended end, B, by means of which it is secured to the base. A strip of metal, 0, is secured to the frame upon one side of the magnet, and the free end extends over the coil, and upon the other side of the magnet is secured a similar strip, D, the free end of which extends up and over the coil and between it and the free end of the strip 0. These strips are connected with the circuit which includes the coil of, the magnet and form the terminals of the circuit to be operated by the button 0.

Arranged in connection with the magnet is an armature, E, which is shown in the present instance as being formed of a portion of the same material as the spring-strip D, and carrying on its free end a piece of magnetic material, e, and arranged so that normally the armature is held by the spring out of contact with the core, but may be made to vibrate and strike against the core, producing a signal.

It will be understood that if it is desirable some other signaling apparatus maybe used-- Fig. 2 is a side view of as, for instance, the armature may be provided with an extension, F, forming a hammer to impinge upon a bell or other sounding apparatus, G, although in practice I have found the vibrations of the armature furnish a sufficient signal. This push-button is particularly intended to be operated in connection with an electric circuit having some means of breaking the circuit outside of the push-button as, for instance, a circuit including an automatic circuit-breaker-and I have shown it as applied to a circuit including an electric gas-lighting device, substantially such as is shown in my companion application, Serial No. 282,574, in which, when the circuit is closed, it operates to produce a series of makes and breaks between the electrodes, producing sparks at the burner-tip when the cock is turned to permit the fiow of gas; but when the cock is turned to stop the flow and extinguish the light no interruptions take place in the circuit of the burner.

It will be seen that but a single signal is produced by the act of closing the circuit at the push-button, and the makes and breaks in the circuit outside of the button producea series of signals and the operator is notified of the effect of the closing of the circuit. Thus, when it is applied to the lighting device shown and the circuit is closed at the button by the operator, and the gas is turned on and the spark produced, the alternate makes and breaks produced by the sparking device in the circuit will operate the signal at the push-button and the operator will know that the gas-lighter is being properly operated to turn on and light the gas. When, however, the push-button is closed and a single signal is produced thereby, he will understand that the gas-lighter is being operated to turn off and extinguish the gas.

It is evident that while my button is specially adapted to be used in connection with such a burner it may be used in any other similar circuit where it is desirable to produce a signal at the operating-station. If the pushbutton is used in a bell-circuit, for instance, having a trembly bell at a distance too far to be heard by the operator, the signal in the push-botton will be operated, and the operator will know definitely that the bell is performing its proper function. In like manner many other uses and combinations of the signal push-button may be made, which are too evident to need illustration or particular description, and my invention is not limited to its use with any particular circuit or operating devices. In all cases the signal will disclose to the operator the fact whether the circuit is completed when the push-button is operated, and he will know that the desired result is produced, and in the case of using an automatic circuit-breaker in the circuit the character of the result may be made known, as above set forth.

What I claim is 1. An electric signaling push-button consisting of a base-piece supporting an electromagnet connected in the line-circuit, spring terminals secured to the base-piece at each side of and having their ends over the magnet, a button for closing the terminals, and an armature for the magnet connected to one of the terminals, substantially as described.

2. An electric signaling push-button c011- sisting of a base piece, an electro-magnet the core of which has an extended end secured to the base-piece, spring terminals also secured to the base-piece and having their free ends over the magnet, and one of the terminals being provided witha bent portion forming the armature of the magnet, substantially as de= scribed.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing witnesses.

JOSEPH I-IUFTY LEHMAN. Witnesses:

GEO. W. REED,

NATHAN LANE. 

